Ball thrower



FIG. 1 is a first isometric view of a ball thrower showing my new design;

FIG. 2 is a second isometric view of the ball thrower shown in FIG. 1;

FIG. 3 is a front elevational view of the ball thrower shown in FIG. 1;

FIG. 4 is a rear elevational view of the ball thrower shown in FIG. 1;

FIG. 5 is a left side view of the ball thrower shown in FIG. 1; the right sides being a mirror image thereof;

FIG. 6 is a top view of the ball thrower shown in FIG. 1; and,

FIG. 7 is a bottom view of the ball thrower shown in FIG. 1. 

CLAIM The ornamental design for a ball thrower, as shown and described. 